Search results for "SENSORS"

INTRODUCTION TO WEARABLE HEALTHCARE TECHNOLOGY

2017

Teknologian nopea kehitys on mahdollistanut ennennäkemättömän pienten tietokoneiden valmistuksen. Puettavat teknologiat käyttävät hyväkseen näitä pieniä puettavia laitteita, joilla on tarkoitus parantaa elämänlaatua. Puettavien teknologialaitteiden määrän kasvun on odotettu saavuttavan miljardin laitteen rajan vuoden 2022 tienoilla. Koska terveydenhuolto hyötyy teknologian kehityksestä, se on oiva kohde puettavan teknologian hyödylliseen käyttöön. Tämän tutkielman tarkoituksena on luoda yleislaatuinen selvitys puettavista teknologioista, niiden antamista mahdollisuuksista ja riskitekijöistä terveydenhuollon alalla. Aiemmat tutkimukset asiasta ovat keskittyneet lähinnä puettavan teknologian …

A DNA‐Encoded FRET Biosensor for Visualizing the Tension across Paxillin in Living Cells upon Shear Stress

2022

Paxillin is a potential participant in the direct intracellular force transmission which is considered as the foundation of cells sensing and responding to extracellular environment. However, the detection of tension across paxillin has not been achieved due to lacking microsized tools. Herein, a paxillin tension sensor (PaxTs) based on Fluorescence Resonance Energy Transfer (FRET) technique was constructed. PaxTs can be expressed and assembled to FA sites spontaneously to visualize the tension across paxillin with FRET efficiency of ~62.4% in living cells. The tension across paxillin was found to decrease upon shear stress, in which the membrane fluidity and contractility of actin acted as…

Grand Challenges in Acoustic Remote Sensing: Discoveries to Support a Better Understanding of Our Changing Planet

2022

Interjers kā mārketinga rīks sabiedriskās telpās

2017

Diplomdarbā “Interjers kā mārketinga rīks sabiedriskās telpās” tiek pētīts, kā ar dažādiem izteiksmes līdzekļiem iespējams ietekmēt indivīda emocionālo stāvokli un rīcību. Darbs sastāv no trīs nodaļām. Pirmajā tiek izskaidrots mārketinga jēdziens un pētīta tā saistība ar interjera dizainu. Otrajā nodaļā tiek apskatīti cilvēka telpas uztveršanas veidi caur maņām un dažādi interjera dizaina izteiksmes līdzekļi, ar kuru palīdzību var radīt nepieciešamo noskaņu, izraisīt vēlamās emocijas un ietekmēt cilvēka rīcību. Teorētiskās daļas noslēgumā tiek pētīti nosacījumi, kas jāievēro, veidojot fitnesa centru. Empīriskajā daļā tiek pētīti un analizēti sporta zāļu analogi Latvijā un pasaulē. Darbu nos…

Monitoring of stress distribution in damaged small-scale masonry walls by using two innovative sensors

2023

Structural Health Monitoring (SHM) represents a strategic solution for the preservation of cultural heritage buildings. Existing masonry structures often suffer reductions in mechanical performances due to physiological aging of material constituents, external actions, and effect of catastrophic natural events. In many cases, the prompt prediction of damage in masonry elements is difficult and it can cause sudden collapses, compromising the safety of people. The proposed experimental study examines the effectiveness of two low-cost and innovative stress sensors, i.e. piezoelectric and capacitive stress sensors, for SHM of masonry structures. To this scope, the sensors were embedded in the m…

Fall Detection Using Location Sensors and Accelerometers

2015

The rapid aging of the world's population is driving the development of pervasive solutions for elder care. These solutions, which often involve fall detection with accelerometers, are accurate in laboratory conditions but can fail in some real-life situations. To overcome this, the authors present the Confidence system, which detects falls mainly with location sensors. A user wears one to four tags. By detecting tag locations with sensors, the system can recognize the user's activity, such as falling and then lying down afterward, as well as the context in terms of the location in the home. The authors used a scenario consisting of events difficult to recognize as falls or nonfalls to comp…

Methods for estimating forest stem volumes by tree species using digital surface model and CIR images taken from light UAS

2012

In this paper we consider methods for estimating forest tree stem volumes by species using images taken from light unmanned aircraft systems (UAS). Instead of using LiDAR and additional multiband imagery a color infrared camera mounted to a light UAS is used to acquire both imagery and the DSM of target area. The goal of this study is to accurately estimate tree stem volumes in three classes. The status of the ongoing work is described and an initial method for delineating and classifying treetops is presented.

Longitudinal Gait Analysis of a Transfemoral Amputee Patient: Single-Case Report from Socket-Type to Osseointegrated Prosthesis

2023

The aim of the present case report was to provide a longitudinal functional assessment of a patient with transfemoral amputation from the preoperative status with socket-type prosthesis to one year after the osseointegration surgery. A 44 years-old male patient was scheduled for osseointegration surgery 17 years after transfemoral amputation. Gait analysis was performed through 15 wearable inertial sensors (MTw Awinda, Xsens) before surgery (patient wearing his standard socket-type prosthesis) and at 3-, 6-, and 12-month follow-ups after osseointegration. ANOVA in Statistical Parametric Mapping was used to assess the changes in amputee and sound limb hip and pelvis kinematics. The gait symm…

A system to monitor the main ambient parameters in the vineyard with wireless sensors

2009

Wireless technologies have been under rapid development during recent years but applications of wireless sensors in agriculture and food industry are still rare. The aim of this study is to monitor the micro-climate of the grapevine in order to monitor the adversities of the spring period reducing the operating costs of the vineyard and increasing the quality of grapes. At this purpose a Wireless Sensor Network (WSN) was used. Furthermore, a comparison was performed between the data measured by the wireless sensors and the data provided by the fixed meteorological station of the Regione Siciliana (SIAS).

Coverage study of a sustainable IoT system for industrial applications

2022

Los dispositivos del Internet de las Cosas (IoT) son muy útiles para monitorizar información en escenarios industriales incluso en zonas que tienen difícil acceso a través de las conexiones tradicionales. Las comunicaciones inalámbricas fiables pueden ser un reto en entornos industriales, donde la señal de comunicaciones es a menudo bloqueada debido a la presencia de maquinaria industrial, con posibles bloqueos intermitentes y/o impredecibles. Este artículo evalúa las características de cobertura de un despliegue sostenible y de bajo coste de dispositivos IoT para monitorizar una instalación industrial dedicada al diseño y montaje de sistemas de automatización para la industria alimentaria.…